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Bastian Scharre
Guest
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 Posted:
Thu Nov 17, 2005 4:47 pm Post subject:
BMW E30 1990 strange engine poblems... |
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Hi,
my BMW e30 316 from 1990 has a strange problem:
when changing gear and giving it about half throttle, the engine sometimes
stalls for a very short time (about a tenth of a second). It is so bad it
feels as if the pistons got stuck. Apart form taht the engine is fine, does
not use up any oil and starts very quickly.
Then its back to normal. This does not occur if I give it full throttle.
Does anyone have any idea what could cause this?
Thanks,
Bastian.
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Dave Plowman (News)
Guest
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| Posted:
Thu Nov 17, 2005 4:47 pm Post subject:
Re: BMW E30 1990 strange engine poblems... |
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In article <3u35dbFv1ar5U1@news.dfncis.de>,
Bastian Scharre <bastian.scharre@rwth-aachen.de> wrote:
| Quote: | my BMW e30 316 from 1990 has a strange problem: when changing gear and
giving it about half throttle, the engine sometimes stalls for a very
short time (about a tenth of a second). It is so bad it feels as if the
pistons got stuck.
|
Auto or manual?
--
*Be more or less specific *
Dave Plowman dave@davenoise.co.uk London SW
To e-mail, change noise into sound. |
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John Burns
Guest
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| Posted:
Thu Nov 17, 2005 5:22 pm Post subject:
Re: BMW E30 1990 strange engine poblems... |
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| Quote: | my BMW e30 316 from 1990 has a strange problem:
when changing gear and giving it about half throttle, the engine sometimes
stalls for a very short time (about a tenth of a second). It is so bad it
feels as if the pistons got stuck. Apart form taht the engine is fine, does
not use up any oil and starts very quickly.
Then its back to normal. This does not occur if I give it full throttle.
|
Possibly a vacuum leak. Slim chance it's low fuel pressure. Not a
problem I've heard of before.
--
Who needs a life when you've got Unix? :-)
Email: john@unixnerd.demon.co.uk, John G.Burns B.Eng, Bonny Scotland
Web : http://www.unixnerd.demon.co.uk - The Ultimate BMW Homepage!
Need Sun or HP Unix kit? http://www.unixnerd.demon.co.uk/unix.html
www.Strathspey.co.uk - Quality Binoculars at a Sensible price
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Malt_Hound
Guest
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| Posted:
Thu Nov 17, 2005 9:48 pm Post subject:
Re: BMW E30 1990 strange engine poblems... |
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John Burns wrote:
| Quote: | my BMW e30 316 from 1990 has a strange problem:
when changing gear and giving it about half throttle, the engine sometimes
stalls for a very short time (about a tenth of a second). It is so bad it
feels as if the pistons got stuck. Apart form taht the engine is fine, does
not use up any oil and starts very quickly.
Then its back to normal. This does not occur if I give it full throttle.
Possibly a vacuum leak. Slim chance it's low fuel pressure. Not a
problem I've heard of before.
|
Really? Sounds more ignition / electric control to me since the
duration is so short. Ina ny case, certainly not enough info to
diagnose it remotely
--
-Fred W |
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John Burns
Guest
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| Posted:
Thu Nov 17, 2005 10:37 pm Post subject:
Re: BMW E30 1990 strange engine poblems... |
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| Quote: | Possibly a vacuum leak. Slim chance it's low fuel pressure. Not a
problem I've heard of before.
Really? Sounds more ignition / electric control to me since the
duration is so short. Ina ny case, certainly not enough info to
diagnose it remotely
|
I thought about a fuel pump bad relay. But I'd expect that to happen
more often than he describes.
--
Who needs a life when you've got Unix? :-)
Email: john@unixnerd.demon.co.uk, John G.Burns B.Eng, Bonny Scotland
Web : http://www.unixnerd.demon.co.uk - The Ultimate BMW Homepage!
Need Sun or HP Unix kit? http://www.unixnerd.demon.co.uk/unix.html
www.Strathspey.co.uk - Quality Binoculars at a Sensible price |
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Jack
Guest
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| Posted:
Fri Nov 18, 2005 8:04 am Post subject:
Re: BMW E30 1990 strange engine poblems... |
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It sounds like you may have an intermittent connection in the ignition
circuit.
My 318i developed a very severe 'bucking' stall like this when my
distributor wore to the point that it would whirl in the housing at high
rpms and the ignition would stop working abruptly. It could be that the
torque of half throttle is moving your engine just enough to cause the
wiring to the distributor to short or open. Your car is old enough that
some wiring may have worn through it's insulation or broken from fatigue.
"Bastian Scharre" <bastian.scharre@rwth-aachen.de> wrote in message
news:3u35dbFv1ar5U1@news.dfncis.de...
| Quote: | Hi,
my BMW e30 316 from 1990 has a strange problem:
when changing gear and giving it about half throttle, the engine sometimes
stalls for a very short time (about a tenth of a second). It is so bad it
feels as if the pistons got stuck. Apart form taht the engine is fine,
does
not use up any oil and starts very quickly.
Then its back to normal. This does not occur if I give it full throttle.
Does anyone have any idea what could cause this?
Thanks,
Bastian.
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frischmoutt
Guest
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| Posted:
Sat Nov 19, 2005 12:54 am Post subject:
Re: BMW E30 1990 strange engine poblems... |
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Water in the tank ?
I had problems with a carb. Dunno with an injection.
"Bastian Scharre" <bastian.scharre@rwth-aachen.de> a écrit dans le message
news: 3u35dbFv1ar5U1@news.dfncis.de...
| Quote: | Hi,
my BMW e30 316 from 1990 has a strange problem:
when changing gear and giving it about half throttle, the engine sometimes
stalls for a very short time (about a tenth of a second). It is so bad it
feels as if the pistons got stuck. Apart form taht the engine is fine,
does
not use up any oil and starts very quickly.
Then its back to normal. This does not occur if I give it full throttle.
Does anyone have any idea what could cause this?
Thanks,
Bastian.
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